Bottle stopper



FIG. 1 is a perspective view of the bottle stopper;

FIG. 2 is a left side view thereof (with the right side being a mirrorimage thereof);

FIG. 3 is a front side view thereof (with the rear side being a mirrorimage thereof);

FIG. 4 is a bottom view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a perspective view thereof in a use environment.

The broken lines depict environment and form no part of the claimeddesign.

CLAIM The ornamental design for a bottle stopper, as shown, anddescribed.